Under the supervision of their parents, Jyoti, 13, (left) her sisters Arti, 18, (back) and Poonam, 12, (front) are making Rangolis, Hindu floor decorations, ahead of celebrations for Diwali, the festival of lights, while in front of their newly built home in Oriya Basti, one of the water-contaminated colonies in Bhopal, central India, near the abandoned Union Carbide (now DOW Chemical) industrial complex, site of the infamous '1984 Gas Disaster'. A Rangoli, also known as Kolam or Muggu is folk art from India in which patterns are created on the floor, in living rooms or courtyards, using materials such as rice, dry flour, coloured powders and flower petals.